Projectile and time-fuse therefor.



Patented May 6, I902. W. BUEGG.

PROJECTILE AND TIME FUSE THEREFOR.

(Application filed Jan. 2, 1902.) 2 Sheets-Sheet I.

(No Model.)

Eg V cm PHOTO-UM wuumo'ron, a; c.

No. 699,577. Patented May 6, I902.

W. RUEGG.

PRDJECTILE AND TIME FUSE THEREFUR.

(A 'pplication filed Jan. 2, 190 2.)

INITEDI TATES ATEN C PROJECTILE AND TIME-FUSE THEREFOR.

SPEGIFIGATION fOrming part of Letters Patent No. 699,577, dated May 6, 1902.

Application filed Jamm 2, 1902. serial No. 88,221. (No model.)

To a. whom it may concern:

Be it known thatI, WERNER RUEGG, engineer, a citizen of Switzerland, residing at Dreyseplatz 1 1, Sommerda, in the Kingdom of Prussia,'German Empire, have invented certain new and useful Improvements in Proj ectiles and Time-Fuses Therefor,of which the following is a specification.

-My invention relates to a fuse for project iles in whichthe compressed powder charge is not, as is usual, arranged in a conoentrical annular manner, but in the form of a straight rod orstrip in the longitudinal axis of':the fuse and projectile, audit refers particularly to a timing device for the fuse, with an endless band also arranged in the longitudinal axis of the projectile and forming the means for regulatingthe time of ignitiona This band is provided with a touch-hole and with a scale upon which is indicated the various burning periods, according to the adjustment of the'band. Thearrangement is made, preferably, so as'to place the powder charge of the time-fuse charge, as well as that of the fire-transmitting portion, the-former'in the form of a rod or strip and the .latter in the form of a part cylinder. hollow toward'the band, parallel toeaoh other upon each side of the band, so that the 1atter,which is movable between 3 them, is capable of eflecting the timed ignition through the touch+hole,according to its adjusted position in the device.

Inthe' drawings is shown a practical con-' struction of a .fuse' provided with a single powder-strip; but it is obvious that several powder'rodsor strips could be arranged parallel to each other in case the timing required more than one strip. p

Figure 1 is' a longitudinal section of a fuse inserted into a shrapnel-shell, the section being taken on the lineA-B CD of Fig. 2. Fig. 2 1s aplan view of a shell with the cover 22 removed to show theinterior. Fig. 3 shows a section of the shell on the line E F G H of Fig. 2. Figh t'is a sectional elevation of the shell, and Figs. 5, 6, and 7 are details of the fuse device.

The fuse of the present construction is like the fuses used up to the present timeas a double f'use,*and therefore isprovided with a timing device, as well as with apercussion primary apparatus. I

The fuse-casing 1, provided with a cover or extension 2, Figs. 1 to 4, contains in openings 6 and 14: the time fusin'gand percussion primary devices 7 15.

In order to connect the projectile with th casing, the latter is provided with a screwthreaded flange.

In a groove in the fuse-composition holder 10 isarranged the highly-compressed powder rod or strip -11. The f use-composition holder 10 is provided at its upper and-lower ends with heads, the upper of which serves, in the first place, for connecting the fuse-composition'holder with the casing 1. Moreover,

this head is provided with borings Hand 17,

adapted to transmit the fire from the time and percussion composition, and with a longitudinal groove 25,'through which the prodnets of combustion of the burning powderstrip can-escape into the hollow space of the,

fuse-casing 1. The connection of the head with the cylinder-casing is effected by means of a riveted pin or key 33, Fig. 4.

' The lower head of the fuse-holder 10 serves as a support for the fire-transmitting portion 18. This head is provided with the touchhole 26, through whichth'e fire can strike from the composition-channel 19 to the powder in the explosion-chamber 30.

The passage of'the 'fire from the powder- 7 strip 11 andfrom the percussion priming compositionv 15 to-the explosive charge is offected through the fire transmitting part 18, Fig. 5, which contains in a longitudinal groove the semicylindrical powder composition 19, forming a channel which'is in connection with the timing device or with the powder-strip 11 by means of the fire-transmission hole 13 in the band 12 and through the passage 17 with the percussion priming device.

The parts 10 and 18 are secured together by clamping-rings 21 and by a sleeve 31,-

which rests at its lower end upon a spring cushion or washer 32. The elampingsrings 21 are situated in grooves 20. The'partsare divided by the inserted'endlessband 12, Figs. 4. and 6, which consists of "two layers; The external surface is formedby a thin-metal band provided with a graduated'sc'al'e for the time-fuse, while upon its inner side this band is provided with a"'strip of felt or' cloth for ICO the purpose of preventing the powder-gases of the burning powder-strip 11 from esoap ing. At a convenient point this band is provided with a fire-transmission hole 13.

On firing the time-fuse composition 7, Figs. 1 and4, is thrown against the pin 8, whereby the charge in the time fusing composition is ignited. The fire finds a passage through the channel 9 to the holder 10, the powderstrip 11 of which is immediately ignited and burns down to the opening 13 in the band 12, Figs. 4 and 5. At this pointthe fire is transmitted to the fuse composition 19 in the part 18, from which it passes without retardation downward into the explosion-chamber 30, the explosive charge of which is thus ignited.

The hole 13 in the band can be adjusted with regard to the strip 11 at will.v To this end the band can be displaced by turning the roller 3 in one or the other direction, thus effecting a shorter or longer burning period of the fuse. The turning of the roller 3 is effected by the rotation of a key engaging the extended axis 27 of the roller, Figs. 1 and 3, which thus moves the band, which passes between the roller 3 and a second roller at. To facilitate the adjustment of the band with regard to the various burning periods, it is guided over a guide-roller 5 as closely as possible to the upper end of the cover 22. A hole 23 in the cover allows of an inspection of the scale on the band, while the slot 2t in the casing 1 or the edge 28 allow of an excellent adjustment of the scale-band.

"If it is intended to cause the projectile to explode not above but on striking the ground, the band 12, which normally is adjusted to the mark 29, Fig. 6, is not readjusted. The fire-transmitting hole 13 in the band 12 does not then lie between the strip 11 and the passage 19, but above the hole 25. Upon exploding, the timing composition acts in the usual manner and the powder-rod 11 burns away slowly. As, however, the hole 13 is arranged above the strip 11, the fire cannot pass to the composition-passage 19 thereof, and no explosion of the explosive charge can be efiectedbythetime fusecomposition. When, however, the projectilestrikes the ground or object, the percussion-priming composition is brought into action by the fusing-pin 15 being thrown forward against the pin 16, so that the composition is ignited. The fire then strikes through the fire-conducting channel 17 into the composition-channel 19 and from hereinto the explosion-chamber30, whereby the charge is exp1oded.

Having now particularly described and ascertained the nature of this invention and in what manner the same is to be performed, I declare that what I claim is- 1. In a time-fuse for projectiles, a fuseholder arranged in the direction of the axis of the projectile, a time fusing composition extending in the direction of the axis of the projectile and arranged in said holder, a band extending in the holdersurrounding said composition and provided with a hole for the passage of fire from said composition when it is ignited, and a fusing composition arranged in said holder and adapted to be ignited by the passage of fire from the time fusing composition through the opening in said band.

2. In a time-fuse for projectiles, a fuseholder arranged in the direction of the axis of the projectile, a time fusing composition extending in the direction of the axis of the projeotile and arranged in said holder, an adjustable band extending in the holder surrounding said composition and provided with a hole for the passage of fire from said composition when it is ignited, and a fusing composition arranged in said holder and adapted to be ignited by the passage of fire from the time fusing composition through the opening in said band.

3. In a fuse for projectiles, a time fusing composition and a fusing'composition suitably arranged within the projectile,aband surrounding the time fusing composition forseparating the same from the fusing composition, said band provided with an opening to permit of the passage of fire from the time fusing composition to the fusing composition, and means for igniting the time fusing composition.

4. In a fuse for projectiles, a time fusing composition and a fusing composition suit ably arranged within the projectile, an adjustable band surrounding the time fusing composition for separating the same from the fusing composition, said band provided with an opening to permit of the passage of fire from the time fusing composition to the fusing composition, and means for igniting the time fusing composition.

5. In a fuse for projectiles, a time fusing composition and a fusing composition suitably arranged within the projectile, a band surrounding the time fusing composition for separating the same from the fusing composition, said band provided with an opening to permit of the passage of the fire from the time fusing composition to the fusing composition, means for adjusting the said band, and means for igniting the time fusing composition.

6. In combination with a projectile, a compressed powder-strip suitably arranged therein and extending in the direction of the axis of the projectile, a band surrounding the said strip and provided with an opening for the passage of fire therefrom, a semicylindrical mass of combustible material arranged in the projectile and extending in the direction of the axis thereof and adapted to be ignited by the passage of fire through said opening in said band, and means for igniting the said 'strip.

position, means for igniting the latter, means.

IIO

'fusi-ng compositionto the fusing composition when the former is ignited.

8. In combination with a projectile, a time fusing composition arranged therein and extending in the direction of the'axis thereof, a fusing composition arranged in the projectile and extending parallel with the time fus-' ing composition, means for igniting the time f usingcompositiomand means arranged in the projectile to permit of the passage offire from the time fusing composition to the fusing c0mposition.- J Y 9.- In combination Witha projectile, of a holder arranged therein and extending in the" direction of the, axis thereof, said holder communicating by an opening at its lower end with the explosion-chamber of the projectile,

a time fusing composition arranged. in the said holder, at fusing composition mounted in said holder and communicating with the opening in the bottom thereof, means for-igniting the time fusing composition, and -means extending in the holder for separating the time fusing fromt'he fusing composition and to permit of the passage of.fire from the time fusing composition to the fusing composition for igniting the latter.

10. In combination witha projectile, a fus-i ing-composition striparranged therein, a semicylindrical fu'sing'mass arranged parallel to the said strip, an adjustable band extending between the said mass and strip and provided with an-opening to permit of the passage of fire from said strip to said mass, and means connected with the projectile to permit of suitably adjusting the said band.

11.- In combination with a projectile, a time fusing composition arranged therein, a fusing composition'arranged parallel with the'time fusing composition, both of the said compositionsextending in the direction of the axis of the projectile, andmeans for adjusting the burner period of said timing composition, the displacement of the said meansbeing effected parallel to the longitudinal axis o'fthe projectile.

In testimony whereof I have hereunto set my hand'in the presenceof two subscribing witnesses.

WERNER RUEGG.

' Witnesses:

MAX MEYER,

ALEX. PIETZSOHY. 

